Improvement in



JOHN BLQHAS'TINGS.

' Improvement in ShQve-Unders for Rolling-Mills.

Patented J-uhe 1.8','1872.

INVENTOR UNITED STATES PATENT OFFICE.

JOHN B. HASTINGS, or IRoNToN, OHIO.

IMPROVEMENT IN SHOVE-UNDERS FOR ROLLING-MILLS.

Specification forming part of Letters Patent No. 128,142, dated J nne18, 1872.

SPECIFICATION.

I, JOHN B. HASTINGS, of Ironton, in the county of Lawrence and State ofOhio, have invented a new and useful Machine called a Shove-Under, ofwhich the following is a specification:

Nature and Objects of the Invention.

This machine is employed in iron-rollin g mills in passing plates orsheets of metal, after they have passed through one pair of rolls, backunder the rolls, so that they maybepassed through the next pair ofrolls, an operation heretofore performed by hand in an irregular mannerand at great cost, but which this machine performs in a regular mannerand at small cost.

The first part of the invention consists in combining two rollerstogether in such a manner that the space between them shall be largeenough to admit of the easy introduction of the end of a plate or sheetof metal between the rollers, and that said space may, at pleasure, belessened, so as to cause the rollers to press the plate or sheet ofmetal firmly between them; and the second part consists in gearing therollers together in such a manner that they remain geared whether incontact or separated, and that both rollers have a positive motion, andaid in feeding forward the plate or sheet of metal. The object of theinvention is to pass plates or sheets of metal in iron-rolling mills,during the process of rolling, from the delivery side of the rolls tothe receiving side by machinery instead of by hand.

Description of the Accompanying Drawing.

Figure Iis a perspective view of the machine.

A is the bed-plate upon which the machine stands. B B are housings orstandards, having rabbets b b at their inner corners. They should besubstantially made. 0 is the lower roller, which works in stationaryjournals 0 0. D is the upper roller, which works in journals d d, whichare movable up and down. The journals 0 c and d d have flanges fittinginto the rabbetsb 1), whereby they are kept in place between thehousings B B. E E are bearers, on which the journals d at rest. F F aretension-rods, by which the bearers E E are suspended from springs G G,which thus support the roller D and keep it up from the roller 0,leaving space enough between the rollers to allow a plate or sheet ofmetal to pass in easily between them. H H are pinions on the ends of theaxles of the rollers, by which motion is communicated from the lowerroller to the upper one. The leaves of the pinions are sufficiently longto admit of the slight vertical motion of the upper roller withoutgetting the pinions out of gear. I is a pulley on the end of the axle ofthe lower roller 0, by which mo tion is conveyed from the belt J,which'passes round a drum on the driving-shaft of the mill, and by whichthe rollers are kept in motion. K is a pressure-plate, which rests onthe journals d d. L is a prop, pivoted to a lever, M, by which thepressure given to the leverM by hand is communicated to thepressure-plate K and journals d d, and the roller D is pressed down onthe roller 0 with a force proportional to that applied to the lever M.

This machine is used in nail-plate-rolling mills. In such mills thereare three pairs of rolls. The first pair of rolls is called theroughing-rolls, the second pair is called the bullheads, and the thirdpair is called the finishing-rolls; and all three are required to make afinished nail-plate. The iron goes through the roughing-rolls first, andis put through four times, so as to lengthen out and thin down the massof iron considerably. While the iron is being passed and repassedthrough the roughing-rolls it is easily handled with tongs, and can beshoved under the rolls from the back to the front by hand. When the ironleaves the roughing-rolls it is passed by hand to the bull-head rolls,and shoved under the last-named rolls to the front. It is then passedonce through the bull-head rolls, which are plain on the face, and whichthin out and elongate the plate so much that it can no longer be handledeasily with tongs. As the plate leaves the bull-head rolls it is sliddown an incline, the attendant seizing it with tongs, and the end of itis placed between the rollers of the shove-under, which is placed at theback of the finishing-rolls, and a little to one side of them. The leverof the shove-under is then pressed down by an attendant, so that therollers press upon the plate and draw it forward. The end of the plateis thus shoved under the finishing-rolls from the back to the front,where the roller attending on the rolls seizes it with tongs and bendsit up and puts it between the rolls. The rolls then pass the plate tothe back and still further thin it and elongate it. As soon as the endof the plate leaves the rolls it is seized with tongs and put betweenthe rollers of the shove-under, by which it is again drawn forward andshoved to the front of the rolls, where the roller again bends it up andpasses it a second time through the finishing-rolls; and this completesthe operation.

Before the invention of this machine two catchers were requiredatthefinishing-rolls, and one at each of the other pairs of rolls, tocatch the iron at back of the rolls. Now one catcher is enough at thefinishing-rolls, the man at the bull-head rolls being able, asheretofore, to assist in carrying away the finished plate; and the boywho attends the lever of the finishing-rolls can also attend the leverof the shove-under, so that one mans labor is saved, and the work isdone more regularly than it used to be by hand.

The roller D being kept apart from the roller G by the springs G G, theend of a plate of metal is easily passed in between the rollers. Whenthe end of a plate of metal is passed in between the rollers by hand aboy attending on the machine presses down the lever M, so that the upperroller D is pressed down on the plate of metal, which is thus firmlypressed between the rollers O and D. The rollers, be-

ing geared together by the pinionsH H, and the roller D being geared tothe driving-shaft, have each a positive motion, and both shove the plateof metal in the direction of their motion-to wit, under the rolls fromthe delivery to the receiving side. The counter-balance, consisting ofthe springs G G, tension-rods F F, and bearers E E, can be substitutedby springs placed between the journals of the upper and those of thelower roller. This is the arrangement I now use in the machine now atwork in the Belfont rolling-mill in this place. It may also besubstituted by springs, from which the journals d d may be suspendedbetween the housings B B, or the journals d 61 may be suspended bychains passing over pulleys, and having counterbalance weights attachedto them.

Claim.

I claim as my invention- The portable machine or shove-under hereindescribed, consisting of the rolls 0 D,

Witnesses:

J os. P. SHAW, BENJAMIN GARVEY.

